SEO methodology: Best Practices for 404 errors

Having said so much about SEO, most of the time, technical, contents, links. It may surprise you 404 error can also affect your SEO or search engine ranking.

So from SEO perspective, why should be pay attention to 404 error? 2 main reasons, without a customised 404 error page for SEO, 2 possible actions, users may abandon their search, or search engine may think that this Site is not complete or still under construction, think that this Site is not worth of a high SEO ranking.

So what is the purpose to customize a 404 error page for SEO? 1st, it returns a correct code of URLs to tell users and search engine spider that the page they are seeking are not found, and you can also tell the users and search engine spiders what to do next. In SEO perspective, getting a higher ranking in SEO.